A、He should often warm his knees up by using hot water pads. B、He should warm himself up by sitting by the stove. C、He should dr

W: Hello, I’m Jenny Johnson. How are you this morning?
M: Hello! Doctor Johnson. I can’t say I’m feeling well. I have a pain and swelling in my knee.
W: What kind of pain is it?
M: It is a dull ache. But sometimes the pain is constant, and disturbs my sleep.
W: How long have you been feeling pain in your knee?
M: For about two years. But recently, I feel pain in my fingers.
W: Have you had any swelling in your fingers?
M: Yes, a little.
W: How about your Wrist or toes?
M: No, only my knees and fingers. The pain becomes worse when the weather changes, like in cloudy or wet weather.
W: OK. Let me see your blood test report first.
M: How is it?
W: Not very bad.
M：Do I have to have an operation?
W: No, I don’t think so. I’ll prescribe some Chinese traditional medicine. Also yon need a treatment with rays below the red in the spectrum.
M: Do I have to come here every day for the treatment?
W: Not every day. Can you come three times a week? A course of treatment includes 20 times, so you have to come for the treatment 3 times a week for 7 weeks.
M: How long does each treatment take?
W: 30 minutes.
M: OK. I’ll do that.
W: When you are at home, use these hot water pads as often as possible. Put it over your knees. Try to avoid using cold water.
M: OK. Thank you, Doctor.
W: You’re welcome.